We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Cassava starch-based nanocomposites reinforced with cellulose nanofibers extracted from sisal.
- Authors
Santana, Jamille Santos; Rosário, Jamile Marques; Pola, Cícero Cardoso; Otoni, Caio Gomide; Fátima FerreiraSoares, Nilda; Camilloto, Geany Peruch; Cruz, Renato Souza
- Abstract
ABSTRACT Cellulose nanofibers were extracted from sisal and incorporated at different concentrations (0-5%) into cassava starch to produce nanocomposites. Films' morphology, thickness, transparency, swelling degree in water, water vapor permeability (WVP) as well as thermal and mechanical properties were studied. Cellulose nanofiber addition affected neither thickness (56.637 ± 2.939 µm) nor transparency (2.97 ± 1.07 mm−1). WVP was reduced until a cellulose nanofiber content of 3.44%. Tensile force was increased up to a nanocellulose concentration of 3.25%. Elongation was decreased linearly upon cellulose nanofiber addition. Among all films, the greatest Young's modulus was 2.2 GPa. Cellulose nanofibers were found to reduce the onset temperature of thermal degradation, although melting temperature and enthalpy were higher for the nanocomposites. Because cellulose nanofibers were able to improve key properties of the films, the results obtained here can pave the route for the development and large-scale production of novel biodegradable packaging materials. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 44637.
- Subjects
CASSAVA starch; NANOFIBERS; NANOCOMPOSITE materials; POLYSACCHARIDES; YOUNG'S modulus
- Publication
Journal of Applied Polymer Science, 2017, Vol 134, Issue 12, pn/a
- ISSN
0021-8995
- Publication type
Article
- DOI
10.1002/app.44637